Mack E7 Service Manual page 168

5-101.bk Page 10 Friday, March 17, 2006 11:05 AM
1
Figure 6-11 — Auxiliary Driveshaft Bushing Alignment
1. Alignment mark
2. Bushing
3. Pilot adapter J 37713
Page 6-10
200 ENGINE ASSEMBLY
2
3
4
200323a
4. Camshaft bushing
remover/installer kit
J 21428-01
5. Check the bushing surface for burrs caused
by installation.
Refer to the Fits and Limits chart in this manual
for correct bushing ID dimensions.
6. Using an inside micrometer or telescope
gauge, measure the ID of the bushing to
ensure against using an undersize bushing.
An undersize bushing may cause the
auxiliary driveshaft to seize in the bushing
during installation.
The front auxiliary driveshaft bushing must be
flush or recessed within 0.020 inch (0.508 mm) of
the front of the cylinder block. Incorrect recess
will cause misalignment of the oil supply hole,
resulting in insufficient lubrication of the journal.
7. Working from the front of the cylinder block,
repeat steps 1 through 6 to install front
bushing.